PL EN


Preferences help
enabled [disable] Abstract
Number of results
2017 | 131 | 4 | 1165-1167
Article title

Mechanochemical Reduction of Chalcopyrite CuFeS₂: Changes in Composition and Magnetic Properties

Content
Title variants
Languages of publication
EN
Abstracts
EN
High-energy milling of sulphides with a reactive metal in so-called mechanochemical reduction mode can lead to products in nanorange and to composition which simplifies the following metallurgical processing. Chalcopyrite CuFeS₂, a ternary semiconductor with antiferromagnetic properties represents promising candidate as an advanced material for use in inexpensive nanoelectronics (solar cells, magnetic area), as well as copper ore source in metallurgical operations. In this work, the process of mechanochemical reduction of chalcopyrite with elemental iron is studied. The composition and properties of nanopowder prepared by high-energy milling were analyzed by X-ray diffraction and magnetic measurements. Most of the reaction takes place during 30 min with chalcocite Cu₂S and troilite FeS as the only reaction products. The magnetic investigations reveal significant increase of saturation magnetization as a result of milling. Unlike the conventional high-temperature reduction of chalcopyrite, the mechanochemical reduction is fast and ambient temperature and atmospheric pressure are sufficient for its propagation.
Keywords
EN
Publisher

Year
Volume
131
Issue
4
Pages
1165-1167
Physical description
Dates
published
2017-04
Contributors
author
  • Institute of Geotechnics, SAS, Watsonova 45, 04001 Košice, Slovakia
author
  • Institute of Geotechnics, SAS, Watsonova 45, 04001 Košice, Slovakia
author
  • Institute of Geotechnics, SAS, Watsonova 45, 04001 Košice, Slovakia
author
  • Institute of Experimental Physics, SAS, Watsonova 47, 04001 Košice, Slovakia
author
  • Institute of Geotechnics, SAS, Watsonova 45, 04001 Košice, Slovakia
author
  • K.I. Satpayev Kazakh National Research Technical University, Satpayev Str. 22a, 050013 Almaty, Kazakhstan
author
  • K.I. Satpayev Kazakh National Research Technical University, Satpayev Str. 22a, 050013 Almaty, Kazakhstan
author
  • Al-Farabi Kazakh National University, Al-Farabi Av. 71, 050040 Almaty, Kazakhstan
References
  • [1] Y. Li, N. Kawashima, J. Li, A.P. Chandra, A.R. Gerson, Adv. Coll. Interface Sci. 197-198, 1 (2004), doi: 10.1016/j.cis.2013.03.04
  • [2] X. Wu, Y. Zhao, Ch. Young, G. He, J. Mater. Sci. 50, 4250 (2015), doi: 10.1007/s10853-015-8977-1
  • [3] B. Li, L. Huang, M. Zhong, Z. Wei, J. Li, RSC Adv. 5, 91103 (2015), doi: 10.1039/C5RA16918F
  • [4] F. Habashi, Chalcopyrite: Its Chemistry and Metallurgy, Mc Graw-Hill, New York 1978
  • [5] T.Ch. Almeida, E.M. Garcia, H.W.A. Silva, T. Matenzio, V.F.C. Lins, Int. J. Min. Proc. 149, 25 (2015), doi: 10.1016/j.minpro.2016.02.001
  • [6] P. Baláž, Mechanochemistry in Nanoscience and Minerals Engineering, Springer, Berlin 2008
  • [7] P. Baláž, Extractive Metallurgy of Activated Minerals, Elsevier, Amsterdam 2000
  • [8] V.V. Boldyrev, K. Tkáčová, J.T. Pavlyuchin, E.G. Avvakumov, R.S. Sadykov, P. Baláž, Dokl. Akad. Nauk. 273, 643 (1983)
  • [9] L.J. Horwood, M.G. Townsend, A.H. Welster, J. Solid State Chem. 17, 35 (1976), doi: 10.1016/0022-4596(76)90198-5
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv131n4182kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.